Adult adaptive ski seat



FIG. 1 is a right side elevational view of a child's adaptive ski seat showing my new design, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front end view thereof;

FIG. 3 is back end view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for an adult adaptive ski seat, as shown and described. 